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6.4
Blocksy Theme for WordPress: Malicious Code Injection via Metadata Fields
CVE-2026-2583
Summary
The Blocksy theme for WordPress is vulnerable to malicious code injection. An attacker with contributor-level access or higher can add malicious code to pages, which will execute when users view those pages. Update the theme to the latest version to fix this issue.
Original title
The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `blocksy_meta` metadata fields in all versions up to, and including, 2.1.30 due to insufficient input sanitizati...
Original description
The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `blocksy_meta` metadata fields in all versions up to, and including, 2.1.30 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
nvd CVSS3.1
6.4
Vulnerability type
CWE-79
Cross-site Scripting (XSS)
Published: 2 Mar 2026 · Updated: 13 Mar 2026 · First seen: 6 Mar 2026